# MRI Toolkit — MRI Physics & Protocol Tools > MRI physics and protocol calculation tool for students and professionals. (iPhone/iPad app by MRI Toolkit LLC.) - Source: https://appshunter.io/ios/app/mri-toolkit/id6790910210 (this page in markdown: same URL + `.md`) - Developer: [MRI Toolkit LLC](https://appshunter.io/developer/6790910212) - Category: Medical, Education - Price: Free (on sale, was $4.99) - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 15.1 · 38 MB - Languages: American English - Released: 2026-07-23 - Data updated: 2026-09-09 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/mri-toolkit/id6790910210/reviews.md ## What is MRI Toolkit? MRI Toolkit brings practical MRI learning and protocol calculations into one focused app for MRI students, technologists, and imaging professionals. Learn basic MRI physics in plain language, calculate voxel dimensions, estimate scan time, explore protocol tradeoffs, and compare common manufacturer sequence acronyms. INCLUDED TOOLS • Basic MRI Physics Follow the journey from proton alignment and RF excitation to relaxation, signal detection, gradients, k-space, SNR, and spatial resolution. • Voxel Calculator Compare 2D and 3D voxel dimensions and volume using FOV, matrix, slice thickness, slab coverage, and slice/partition thickness. • Scan Time Calculator Estimate acquisition time and review timing relationships using TR, phase matrix, NEX, echo train length, TE, TI, and bandwidth. • Protocol Optimizer Explore balanced, resolution, SNR, or scan-time goals and compare current parameters with educational suggestions and clearly stated tradeoffs. • Sequence Acronyms Cross-reference common Siemens, GE, Philips, and Canon names for related MRI sequence families. OPTIONAL LEARNING MODULES Explore free previews of Contrast, Timing and Sequences; MRI Acceleration; Artifacts and Image Quality; and Bandwidth Deep Dive. Unlock each complete module with a one-time in-app purchase. An optional Artifacts + Bandwidth Bundle unlocks both Modules 4 and 5. Restore Purchases is available for previously purchased content. PRIVACY FIRST MRI Toolkit requires no account and contains no advertising, tracking, or third-party analytics. Calculator inputs remain on the device. EDUCATIONAL USE MRI Toolkit is an educational reference and calculation aid. Calculations are simplified estimates. The app does not diagnose, treat, prevent, or monitor medical conditions and does not replace scanner documentation, institutional policy, device labeling, MRI safety procedures, or qualified clinical judgment. ## Key features - Basic MRI physics explanations - Voxel dimension and volume calculator - Scan time estimation tool - Protocol optimization exploration - MRI sequence acronym cross-referencing - Privacy-focused, no ads or tracking ## Frequently asked questions about MRI Toolkit ### What is MRI Toolkit? MRI Toolkit is a paid educational app designed to assist MRI students, technologists, and imaging professionals. It offers tools for learning MRI physics and performing protocol calculations, such as estimating scan times and comparing sequence acronyms. ### How much does MRI Toolkit cost? MRI Toolkit is a paid application priced at $4.99. This one-time purchase grants access to all its features without any additional in-app purchases or subscriptions. ### Does MRI Toolkit have ads? No, MRI Toolkit is ad-free. The app is designed with privacy in mind and contains no advertising, tracking, or third-party analytics. ### What devices is MRI Toolkit available on? MRI Toolkit is available for iOS devices, including iPhone and iPad. It is compatible with iPods as well. ### How often is MRI Toolkit updated? The latest version of MRI Toolkit is 1.1, which was last updated on August 1, 2026. Updates typically focus on refining existing tools and ensuring compatibility. ### Is MRI Toolkit suitable for beginners? Yes, MRI Toolkit is designed for learning and includes basic MRI physics explained in plain language. It also provides tools for calculations and protocol exploration, making it beneficial for those new to the field. ### Does MRI Toolkit replace official scanner documentation? No, MRI Toolkit is an educational reference and calculation aid. It does not replace scanner documentation, institutional policy, device labeling, MRI safety procedures, or qualified clinical judgment. ### What is the age rating for MRI Toolkit? MRI Toolkit has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content. ## Version history (last 5 releases) ### 1.5.0 — 2026-09-06 New in MRI Toolkit 1.5: • Added Artifacts and Image Quality, with lessons and interactive practice for recognizing MRI artifacts and exploring corrections. • Added Bandwidth Deep Dive, covering signal-to-noise ratio, chemical shift, distortion, readout timing, and bandwidth tradeoffs. • Added an optional Artifacts + Bandwidth Bundle that unlocks both modules with one in-app purchase. • Improved purchase status messages and kept Restore Purchases available for existing owners. ### 1.4 — 2026-08-29 New in MRI Toolkit 1.4: • Added MRI Physics Foundations with plain language lessons, original visuals, a Larmor frequency tool, and knowledge checks. • Added Contrast, Timing and Sequences with practical guidance for TR, TE, TI, flip angle, gradient echo, Dixon, and STIR. • Added MRI Acceleration with lessons, visual tradeoffs, clinical scenarios, and an interactive acceleration lab. • Expanded the voxel and scan time tools with clearer 2D and 3D guidance and protocol tradeoff explanations. • Refreshed the home screen and navigation for faster access to lessons, calculators, and reference tools. • Improved accessibility, purchase restoration, and educational disclaimers. ### 1.3 — 2026-08-19 New in MRI Toolkit 1.3: • Added MRI Artifacts & Troubleshooting with 11 lessons, six Artifact Detective cases, and a 16-question assessment. • Added Bandwidth Deep Dive with eight plain-language lessons, narrow-versus-wide visuals, a tradeoff lab, clinical cases, and a 16-question assessment. • Added optional one-time purchases for each module and a discounted bundle. • Improved purchase restoration, navigation, accessibility, and numeric-keyboard controls. • Added “More modules coming soon” to the learning menu. ### 1.2 — 2026-08-06 New in MRI Toolkit 1.2: • Added a dedicated MRI Learning Modules menu. • Added Module 2: Contrast & Sequence Timing, with a free preview and an optional one-time unlock for the complete module. • Added Module 3: MRI Acceleration, with free preview lessons and an optional one-time unlock. • Added guided lessons, knowledge checks, answer explanations, the interactive Acceleration Tradeoff Lab, and Restore Purchases support. • Improved navigation and layout throughout the app. ### 1.1 — 2026-08-01 New in MRI Toolkit 1.1: • Added Module 1: MRI Physics Foundations with simplified lessons, MRI history, fun facts, and quizzes. • Improved 3D voxel entry with a Done control. • Improved PD and T2-FLAIR sequence identification. • Added 1.5T and 3T timing references across Protocol Optimizer sequences. • Improved educational wording and reliability. ## Related topics [mri contrast](https://appshunter.io/ios/topics/mri-contrast) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*